Performance of a Zeolite-Filled Slow Filter for Dye Removal and Turbidity Reduction
Sultakhan, Shynggyskhan ; Kunarbekova, Makhabbat ; Khalkhabai, Bostandyk ; Kakimov, Ulan ; Kuldeyev, Erzhan ; Berndtsson, Ronny LU
; Lee, Jechan
and Azat, Seitkhan
(2025)
In Water (Switzerland)
17(24).
- Abstract
Ever-increasing global water shortages necessitate more advanced and cost-effective water purification methods. Herein, a novel slow filtration system using natural raw zeolite is proposed as an alternative to traditional quartz sand as a filter medium. The system demonstrates excellent performance in reducing turbidity and removing methylene blue (MB). The natural zeolite-based filtration system (filter bed depth of 70 cm) completely adsorbed 30 ppm MB at a filtration velocity of 0.2 m/h, maintaining its performance up to 2 months. The highest adsorption capacity (qmax) for MB of natural zeolite was 8.32 mg/g for the 0.3 mm fraction and 13.84 mg/g for the 0.1 mm fraction. The slow filtration process demonstrated high... (More)
Ever-increasing global water shortages necessitate more advanced and cost-effective water purification methods. Herein, a novel slow filtration system using natural raw zeolite is proposed as an alternative to traditional quartz sand as a filter medium. The system demonstrates excellent performance in reducing turbidity and removing methylene blue (MB). The natural zeolite-based filtration system (filter bed depth of 70 cm) completely adsorbed 30 ppm MB at a filtration velocity of 0.2 m/h, maintaining its performance up to 2 months. The highest adsorption capacity (qmax) for MB of natural zeolite was 8.32 mg/g for the 0.3 mm fraction and 13.84 mg/g for the 0.1 mm fraction. The slow filtration process demonstrated high turbidity removal efficiencies, achieving 98.53% with the natural zeolite filter and 98.97% with the quartz sand filter, indicating the effectiveness of both media in improving water quality. This study highlights the potential of the natural zeolite-based slow filtration system as a versatile and effective water treatment solution.
(Less)
- author
- Sultakhan, Shynggyskhan
; Kunarbekova, Makhabbat
; Khalkhabai, Bostandyk
; Kakimov, Ulan
; Kuldeyev, Erzhan
; Berndtsson, Ronny
LU
; Lee, Jechan
and Azat, Seitkhan
- organization
- publishing date
- 2025-12
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- crystalline mineral, filtration, porous material, wastewater, water treatment, zeolite
- in
- Water (Switzerland)
- volume
- 17
- issue
- 24
- article number
- 3557
- publisher
- MDPI AG
- external identifiers
-
- scopus:105025785102
- ISSN
- 2073-4441
- DOI
- 10.3390/w17243557
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2025 by the authors.
- id
- b5cf9bfb-4f19-4ae4-9b53-1df8c9716618
- date added to LUP
- 2026-01-07 11:16:53
- date last changed
- 2026-01-09 09:54:55
@article{b5cf9bfb-4f19-4ae4-9b53-1df8c9716618,
abstract = {{<p>Ever-increasing global water shortages necessitate more advanced and cost-effective water purification methods. Herein, a novel slow filtration system using natural raw zeolite is proposed as an alternative to traditional quartz sand as a filter medium. The system demonstrates excellent performance in reducing turbidity and removing methylene blue (MB). The natural zeolite-based filtration system (filter bed depth of 70 cm) completely adsorbed 30 ppm MB at a filtration velocity of 0.2 m/h, maintaining its performance up to 2 months. The highest adsorption capacity (q<sub>max</sub>) for MB of natural zeolite was 8.32 mg/g for the 0.3 mm fraction and 13.84 mg/g for the 0.1 mm fraction. The slow filtration process demonstrated high turbidity removal efficiencies, achieving 98.53% with the natural zeolite filter and 98.97% with the quartz sand filter, indicating the effectiveness of both media in improving water quality. This study highlights the potential of the natural zeolite-based slow filtration system as a versatile and effective water treatment solution.</p>}},
author = {{Sultakhan, Shynggyskhan and Kunarbekova, Makhabbat and Khalkhabai, Bostandyk and Kakimov, Ulan and Kuldeyev, Erzhan and Berndtsson, Ronny and Lee, Jechan and Azat, Seitkhan}},
issn = {{2073-4441}},
keywords = {{crystalline mineral; filtration; porous material; wastewater; water treatment; zeolite}},
language = {{eng}},
number = {{24}},
publisher = {{MDPI AG}},
series = {{Water (Switzerland)}},
title = {{Performance of a Zeolite-Filled Slow Filter for Dye Removal and Turbidity Reduction}},
url = {{http://dx.doi.org/10.3390/w17243557}},
doi = {{10.3390/w17243557}},
volume = {{17}},
year = {{2025}},
}